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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: fiddler on April 30, 2017, 01:35:07 am

Title: Gap between heater distributor box and defrost ducts
Post by: fiddler on April 30, 2017, 01:35:07 am

I am putting the interior back together after re-insulating from mouse damage.  There is about a half inch space between the defrost ducts and the heater distributor box.  Is that space normal and if not what is there that covers it? 

ricky

Title: Re: Gap between heater distributor box and defrost ducts
Post by: 1967KaiserM715 on April 30, 2017, 06:57:13 am

Normal, you can take some foam strips and glue them around the outlet to help block some of the air. I used a couple pieces of AC weatherstripping it's roughly 1" square and is adhesive on one side.


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Title: Re: Gap between heater distributor box and defrost ducts
Post by: fiddler on April 30, 2017, 11:33:55 am

Thanks for the input.  I will cover it as well.

ricky